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      10-30-2008, 03:58 AM   #22
m3bs
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Drives: '11 M3 ZCP, 95 M3 Track Toy
Join Date: Feb 2008
Location: North Augusta, SC

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Racing or not, a metal piston shouldn't crack like that. Seals melt due to the temps, rotors crack due to the rapid temperature cycles, but that should not happen.

I'd be interested to get that piston to a metallurgist. My first thought is that a safety recall is in order.